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TG—200冷轧管机轧槽块是生产各种大型冷轧无缝钢管的主要工具之一。在轧制无缝钢管过程中,轧槽块受力状况复杂,工作条件也较为恶劣,因此,要求轧槽块具有高而均匀的表面硬度,一定的淬硬层深度,使其具有良好的抗疲劳、抗事故能力、高的耐磨性能,从而有利于提高轧槽块的使用寿命和钢管的表面质量。为了获得高的硬度和深的淬透层,一般选用冶金质量要求较高的高碳铬钢作为轧槽块用钢。国内大型冷轧管机轧槽块传统采用 GCr15钢,小型冷轧管机轧憎块采
TG-200 Cold Rolling Mill Rolling Mill is one of the main tools for producing all kinds of large cold-rolled seamless steel pipe. In the process of rolling seamless steel pipe, the stress conditions of the groove are complicated and the working conditions are also worse. Therefore, it is required that the groove of the groove has high and uniform surface hardness and a certain depth of hardened layer, so that it has good resistance Fatigue, anti-accident ability, high wear resistance, which will help to improve the service life of the rolling block and the surface quality of steel pipe. In order to obtain high hardness and deep hardened layer, the general selection of high quality metallurgical quality of high-carbon chromium steel as a groove block steel. Domestic large cold rolling machine rolling groove traditional GCr15 steel, small cold rolling machine block rolling block mining